﻿#region Copyright and license information
// Copyright 2001-2009 Stephen Colebourne
// Copyright 2009-2010 Jon Skeet
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#endregion

using System;
using System.IO;
using Newtonsoft.Json;

namespace NodaTime.Serialization.JsonNet
{
    /// <summary>
    /// Json.NET converter for <see cref="RecurrenceRule"/>.
    /// </summary>
    public class NodaRecurrenceRuleConverter : NodaConverterBase<RecurrenceRule>
    {
        /// <summary>
        /// Reads a string from the reader, and converts it into a <see cref="RecurrenceRule"/>.
        /// </summary>
        /// <param name="reader">The JSON reader to fetch data from.</param>
        /// <param name="serializer">The serializer for embedded serialization.</param>
        /// <returns>The <see cref="DateTimeZone"/> identified in the JSON, or null.</returns>
        protected override RecurrenceRule ReadJsonImpl(JsonReader reader, JsonSerializer serializer)
        {
            return RecurrenceRule.Parse((string)reader.Value);
        }

        /// <summary>
        /// Converts the given <see cref="RecurrenceRule"/> to JSON.
        /// </summary>
        /// <param name="writer">The writer to write to</param>
        /// <param name="value">The value to convert</param>
        /// <param name="serializer">Unused by this serializer</param>
        protected override void WriteJsonImpl(JsonWriter writer, RecurrenceRule value, JsonSerializer serializer)
        {
            writer.WriteValue(value.ToString());
        }
    }
}
